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Cummins PowerSpec Web is an accessible website resource for complete powertrain spec’ing for Cummins engines in the on-highway market. PowerSpec Web along with the original PowerSpec PC based software allows the tailoring of Cummins engines in every on-highway engine application.

PowerSpec supports all North American On-Highway Cummins products including Diesel and Natural Gas and is expanding globally, with support for  Australia coming later this year, and support for Latin America and India coming next year.

Features include a gearing calculator, complete descriptions of electronic features with video content, instructions on how to optimize parameter settings, additional resources that help with the spec’ing process. PowerSpec also supports fault codes and trip information on all On-Highway products.

The PowerSpec PC application can be downloaded, at no charge, to any PC running Windows 8.1 or Windows 10. An INLINE 7 adapter cable (part number 5299899) - available for order through your local Cummins or Dealer location – is recommended to communicate with your engine to configure electronic features, and read engine data. *PowerSpec works with most RP1210 compliant adapters. 

Additional supported adapters include:

  • INLINE 5
  • INLINE 6
  • Noregon DLA+
  • Noregon DLA+ PLC
  • Noregon Wireless
  • NEXIQ Technologies USB-Link
  • Dearbon DPA 4
  • Dearbon DPA 5
  • Grandview Engineering

PowerSpec can be downloaded, at no charge, to any PC running Windows 7 SP1, Windows 8.1 or Windows 10. Windows 7 will not be supported after June 2020. You will need the INLINE 7 adapter cable, available for order at the Cummins PowerStore or through your Cummins distributor, to communicate with and gear your vehicle, configure electronic features, and read engine data. *PowerSpec works with most RP1210 compliant adapters.

Please note:

  • The use of PowerSpec is supported in North America only. For engines equipped with a Diesel Particulate Filter (DPF), Ultra Low Sulfur Diesel Fuel is required. Failure to do so can permanently damage engine and aftertreatment systems within a short period of time. This damage could cause the engine to become inoperable and affect the warranty coverage on the engine.
  • Licensing: PowerSpec does not require a license to connect to a vehicle, read data, or use the gearing calculator. A license is only required to write changes to the adjustable features.

Software Downloads

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Once you download PowerSpec, the process is simple. Just answer a few basic questions about your vehicle and desired operating mode, and the Vehicle Gearing feature will automatically recommend the optimum gearing for your application. The Engine Features and Parameters tool includes complete explanations of every engine feature and parameter, how these features work and how to get the most out of them. The Trip Information feature allows you to access information such as miles per gallon, miles driven, idle time and more. Fault Code Management allows you to read any fault codes that have been logged, making it easier to get accurate repairs.

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FILE NAME: PowerSpec_8.0.2.1_QuickCheck_1.5.3.11_64Bit.exe




This software is not available on mobile. To download for your office or home computer, please return to this page from that device.

Software Licensing

Some Cummins software and mobile applications – including INSITE™, Guidanz®, PowerSpec and QuickCheck – require unique software licenses for use. Licenses are available through a Cummins-authorized distributor or dealer. Please provide us a few details to find your local representative.


Service Area
Virginia (excluding north VA)
Virginia (north)
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